Working Theory

If you want something better than your ordinary slow flowing OEM exhaust box, then Magnum peformance exhaust mufflers are just what you need. They are made of full stainless steel raw materials for longer life and a unique appearance. Wide open performance is the product of custom engineering these Magnum exhaust back mufflers deliver to your Lexus IS250's exhaust system. The result is optimally low gas stranglehold combined with palpable increased output and incredible acceleration. A Magnum exhaust system note is the real tone of muscle and horsepower, producing more horsepower than factory equipment equipment and competitive high performance exhausts. Proven to provide you with the most in performance capability and mid-end torque with straight through wide open performance structure. Select a preferred noise level form 3 categories - 50 up to 90 dB - and enjoy the silence or the orotund: it's all personal preference. Match the utmost power with unsurpassed bass tone. Magnum performance exhausts are designed with

vehicle specific gas restriction

vehicle specific dimensions

vehicle specific inlet/outlet position

custom sound level per you choice

however

they have universal installation made by MIG or TIG welding. Magnum high-flow pipes are not slip on.

Universal installation method is an inexpensive way to increase your vehicle's output. Should you have an installation related question please contact your mechanic, local exhaust shop or email our Tech Support prior to the purchase. You might need some additional parts as exhaust bushing, hangers, stiffeners, so feel free to check out our exhaust accessories .

Choose your exhaust from 3 sound level categories

All Magnum high flow performance pipes will make Buyers feel the mellow gas flow without affecting and reducing vehicle performance potential. This is considered as the best way to increase the pep and passing extra pony by up to 7% as well as to improve MPG from 2 to 3MPG. Tips come with internal resonator for the smoothest and most efficient exhaust gas flow.

Shipment

Each Magnum Performance exhaust is made in Europe so please allow your exhaust 20 up to 28 days to arrive.

why to stick with this Lexus IS250 silencer?

Racing-inspired performance

Full performance and sound adjustability

The success of these performance exhaust mufflerss is attributable to the fact, Magnum high flo exhaust pipes feature optional exhaust note level. We customize the exhaust sound from silent humming to roaring cannon according to your choice.

Unspeakably amazing sound

The special interwoven heat- and flame resistant exhaust packing that surrounds perforated tubes provides sufficient restriction against exhaust gas and guarantees the ultimate power output. This exhaust fill is made of the peak quality exhaust materials and will absorb any metallic noise produced by the pistons and rings in the combustion chamber. The end result is a clear, robust and unparalleled exhaust sound. The sound these mufflers produce is just incredible.

Unbeatable look

The hand-polished glistening tips will give you the look and feel of having the engine performance you and your Lexus IS250 deserves. The humming, mild or brutal bass sound will impress everyone around you.

10-year extended labor warranty

We warrant that all of our exhausts are free of defects. The Magnum Lexus IS250 free-flo pipe is warranted against both blowouts and defects. The Magnum extended 10-year defects-warranty against workmanship and mechanical failure will guarantee that your investment is still performing as long as you own your Lexus IS250.

What does make real difference on the high flowing exhaust market is the fact that Magnum offers 3 sound levels from quiet to loud, and all with the same HP-gain and fuel efficiency improvement.

Whatever vehicle you drive, surely you may find on magnumtuning.com the right free flo pipe fitted for your Lexus IS250. If you want to enjoy the added power output, amazing exhaust tone, and increased economy, don't hesitate to order your Magnum high flowing exhaust today. Whether you drive a street or an off-road car or truck, dyno-proven Magnum high flow performance pipes and exhaust system kits are rugged enough to survive street as well as off road or drug racing.

Packing List

1 x Exhaust Muffler

1 x Installation Instructions

A factory exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine's combustion chamber to the free air and includes several exhaust elements. Depending on the overall system design, the exhaust gas may flow through,

Cylinder head

Exhaust manifold / header

Exhaust tubing

Turbocharger (if any)

Catalytic converter (pre-, post- or both)

Middle muffler

Exhaust resonator

End muffler silencer

Tailpipe

One of the most effective modifications automotive enthusiasts make to their vehicle is the exhaust. It's one of those instant gratification things; step on the gas and hear the exhaust notes come to life. It's proven freeing up a factory exhaust system increases power significantly. Mufflers, resonators, catalytic converters and Catback systems, all contribute to sound, power and restriction. Before they design an exhaust component, the engineers have to obey countless rules pertaining to,

noise level

emission

cost efficiency

engine durability

fuel efficiency

performance

warranty period

It is obvious, performance is not the primary goal of vehicle manufactures when it comes to design an exhaust system. What could be the most important, from the intake through the combustion chambers, to the exhaust, air is not allowed to flow too freely because of restrictions the manufacturers have to compaly with, in the form of the catalytic converters, the resonators, silencers, etc. But a decent tuning system has a deep throaty tone, while yielding increases in horsepower. Tuning exhausts are such systems that can unleash some horsepower and efficiency, while still being safe in respect of engine longevity.

Reasons to get rush and bust on BrutaliTune

Magnum Silencers are proven to deliver the most in power with tunable straight through Triple Perf Tube Design. this exhaust gives you more rideable HP, improves torque, acceleration and smoothes out throttle response.

Premium quality raw materials.

Exhaust body, tips and internal components are crafted of the highest grade SS304 stainless steel inside and out. They resist rain, water, salt water, acids and high temperature in all types of terrain. Your Magnum exhaust is a durable and reliable mechanical muffler sustaining even the harshest conditions. The Chrome Plated end cap is forged out of high quality brass. Tips feature built-in resonator.

Backfires in general

Backfire, also called as lean misfire on deceleration is primarily attributed to an improperly adjusted or tuned engine, ignition or an exhaust / exhaust system with non-optimal gas restriction. If you are struggling with backfires, check your spark plugs and the ignition advance to verify the tune-up is correct. The plugs should be a light tan (deer brown) in color if worked properly. If all OK you should be suspicious the problem is at the exhaust. In many cases, misfire is an indication that the exhaust is too free flowing. Pipes might be too large in diameter or muffler's volume is higher than required for the engine configuration you have. Magnum Exhaust installed on factory vehicle does not produce backfires. Misfire is not uncommon on racing setups though, or on vehicles run on extremely rich mixture at lower air / fuel ratio than 13:00.

About magnum exhausts sound

Depending on your choice of sound, we have 3 series of exhaust mufflers and system kits designed for your vehicle that produce that distinct Magnum sound in mild, moderate bass, and aggressive roaring tones.

Description of Magnum Performance Exhaust Sounds for gasoline engines

Sound Level#1 - Smooth-Ter

Sound level#1 exhausts deliver a mild tone being inaudible from vehicle's compartment. They are is a lil louder than stock exhaust without noticeable difference regarding the driving comfort so actually this exhaust is very quiet either your windows are up or down. These mufflers perfect for customers looking for performance boost but are concerned about installing an exhaust that is too aggressive for daily street driving. The Sound Level#1 Magnum exhausts commonly do not draw people's attention distantly, but increase the performance-look of the vehicle.

Notes

The sound level is subject to increase if adding this exhaust to non-factory aftermarket system or the current system is incomplete e.g. system is decatted.

Turbo and supercharged engines emit lower din, please count on moderated sound. This sound is not attainable on exhaust systems.

Quality exhaust sound assumes flawless vehicle specific components.

We put every wheel into motion to describe sound levels accurately but no sound-warranty/ money back warranty is expressed or implied.

Sound Level#2 - Bass-Ter

Our Bass-Ter exhausts, deliver the same fine attributes as #1 sound mufflers, but they feature a deep tone and great overall acceleration sound. If you want a truly dyno-proven exhaust that delivers a uniquely different tone, our Bass-Ter exhausts are the perfect fit. These mufflers produce an unsurpassed clear bass tone referring to a full-powered explosive engine. At idle the fine deep sound is not brutal, but when you romp on the throttle hard, it has a really amazing rumble. We think our #2 sounds similar to high-revving V8's in supercars. When you are driving normally you can hear a wonderful V8 bass as you move through the revs, but once you start cruising at a constant speed, it again becomes moderately quiet. On the highway, you don't get an annoying sound that gives you a headache. If your windows are up it is loud but bearable. When you go full throttle the sound is jaw-dropping as you hear a symphony of your engine now effortlessly flying through the revs.

Notes

The sound level is subject to increase if adding a Magnum Exhaust component to non-factory aftermarket system or the current system is incomplete e.g. catalytic converter is missing.

A Magnum exhaust system tone is deeper than a bass of a Magnum back muffler.

Sound Level#3 - Monster

These back boxes are recommended for streetracers, drugracers or whoever likes the pure exhaust noise combined with a drum concert's bass effects. You Monster Exhaust works in harmonious accord with the pistons. Our Monster Exhaust and Catbacks feature tuning-bred components that ensure minimal restriction and only slight reduction on sound over open exhaust tubing on decatted vehicles. With street legal vehicles Monster exhausts can be compatible with regular street driving. If you desire the ultimate in aggressive sounding performance and expect the max horsepower boost, a Monster series exhaust is the solution.

Notes

Monster Exhaust is not attainable on turbo or supercharged vehicles with catalytic converters.

A Magnum exhaust system tone is deeper than a bass of a Magnum back muffler.

We put every wheel into motion to describe sound levels accurately but no sound-warranty / money back warranty is expressed or implied.

deep roar was amazing

As i started my truck up at 1AM in the morning the deep roar was amazing. As i acelerate by people it makes them look as my magnum exhaust roars. When I decelerate the sound is amazing, truck is fully loaded wirh mods, (removed) CDI performance (removed) programmer, K&N forced intake but I saw a lili boost horses dancing around, I am very pleased with free S+H and the service they provide.

It looks good and sounds great

My exhaust was easy to put on, with the right tools and a lift the old system was off and the magnum muffler was on in about an hour, but even without a lift its a very easy install, I got the exhaust in 3 days, fast delivery! It looks good and sounds great not to loud and not to quiet. I love the magnum sound.

sound these exhausts produce is frantic

muffler does what ad says and the sound these exhausts produce is frantic as if it was a race car, sound ranges from humming to brutal bass, you have a sensation of lion roar when you romp on the throttle hard and at decel, installation is a lil difficult due to heavy exhausts but extra horses stand there by to indemnify you

this muffler outperforms all

well worth the money, shipped fast in nice wrapping, hassle free installation if your mechanically inclined having flux welder, unspeakably magic humming when mashing the throttle, a deeper tone when throttle is closed, i was unconcerned by the power gain, but there is an improvement in horsepower and torque. I drove tons of cars pepping them up with different exhausts but this muffler outperforms all. Highly recommended.

After burnout muffler emits an amazing deep bass

Arrived in mint condition well packaged, tip is glistening and looks awesome but although workmanship is sturdy muffler is heavier than expected and the hardest parts were welding and hanging. My bad to ignore installation instructions but bear in mind you have to pay extra an exhaust specialist for labor. After setup the exhaust sound was deceiving so I had to drive 300 miles to have my muffler burnt out. After burnout muffler emits an amazing deep bass at 3000 RPM that bears resembles to a drum, its still not too loud. There is no din, no splattering, no scrunch, just pure exhaust sound. Notable boost in driving power in mid range. Thus far I haven't noticed any change in fuel mileage.

all fit well and it sounds awesome

Ordered it on Monday, got it fast on Thursday. Hardest part was my factory pipe was out of round right where the connection needed to be made but once I rounded it out and welded the new exhaust in, all fit well and it sounds awesome despite of my diesel engine and looks great! I noticed a slight improvement in blow off performance too. The only drawback is the weight, I needed to add two extra hangers and replace stock exhaust bushing to heavy duty ones that cost hell a lot.

Unleash your engine's beast with a tuning exhaust. Whether you're looking for more performance down the wheels or you simply want to blow the competition away, Magnum exhaust is your exhaust choice. Magnum performance exhaust mufflers deliver your engine more bite, notable extra horsepower and awesome torque increase. If you want something better than your standard slow flowing OEM muffler, then Magnum performance exhaust mufflers are just what you need. All Magnum performance exhausts are crafted of stainless steel materials for longer life and a unique appearance.

What if you could take a Car Truck SUV with a shining reputation for mid range horsepower and fuel efficiency, practicality and value, and make some easy upgrades to bring its mid range horsepower and fuel efficiency in line with the rest of those great qualities? You can, with Lexus IS250 performance chips. This IS250 performance chips works great on Car Truck SUVs making the engine outperform stock motors. The result? Your IS250 delivers full potential. Magnum stocks the range of performance chips to all Lexus Car Truck SUVs. With numerous performance chips customer reviews to read, you'll discover real experiences from real customers like you. Skeptical you can improve mid range horsepower and fuel efficiency on your Lexus? Feel free to contact our tech support 7 days a week. Your Car Truck SUV deserves the best advice. We stand here by to support your Lexus IS250 tuning project.

Lexus IS250

One of the numerous High Flow Exhausts we carry would be a great modification for your Lexus. We recommend you to install IS250 Performance Exhaust Muffler on your Car Truck to achieve higher level. We have been a reputable manufacturer for 21 years and warrant for the claims. Magnum Technical Support is eager to respond to any inquiry in regarding to your Lexus IS250 Free flow Silencer. One of the many benefits to a Lexus Free flow Silencer is that you can enhance the horsepower and that means better driving torque and acceleration on your IS250 Car Truck. You will notice the instant difference after you plugged this High Flow Exhaust to the stock exhaust of your Lexus. Altering the exhaust gas flow, IS250 Performance Exhaust Muffler adds extra horsepower and delivers further benefits. Porteur commented his purchase as follows. Great communication, I am a repeat happy customer!!! As always super fast shipping and prompt communication. Will buy from again to my Lexus! For other customers, Buy it, Performance Exhaust Muffler is worth the money. Once again, many thanks.